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AgGuide_2015_levelguide_lg

LevelGuide - Australian designed and supported

LevelGuide is gaining market-share amongst land-levelling contractors due to its ease-of-use, wealth of features, and highly accurate and reliable GPS. With the ability to fully leverage the equipment by adding autosteer, variable rate and spray control options has also enhanced its appeal. With the addition of economical cross-levelling – at a fraction of the cost of alternative systems – LevelGuide will make it even easier for contractors to complete jobs in record time, at an industry-leading cost, and with impressive precision.
ONE PROGRAM PROVIDES THE ABILITY TO:
  • Easily create single plane, or work with multi-plane designs
  • Easily create contour banks
  • Record terrain heights before and after each operation
  • Show areas covered, and maintain job areas and times
  • Mark runlines for visual guidance or auto-steer capability
  • Mark special features
  • Maintain multiple farm, field and job characteristics for full record-keeping
  • Cross-levelling

Farmscan Ag - GPS AgGuide Guidance & LevelGuide GPS

LEVELGUIDE'S FRONT SCREEN SHOWS ALL RELEVANT INFORMATION IN ONE STRAIGHT FORWARD FORMAT, INCLUDING:
  • 3D perspective mapping
  • Cut-fill colouring
  • Plane outlines
  • Over/under grade indicator
  • Upcoming terrain cross-section
  • Target and Blade and Original height indicators
  • Easy plane setup and adjustment
A LEVELGUIDE DESIGN CAN BE CREATED USING FOUR TECHNIQUES
  • Triple reference points (just mark 3 points then start working – it’s that easy!)
  • Dual reference points, with designed cross-fall
  • Single reference point, with designed main-fall and cross-fall
  • Full multi-plane design using separate EziGrade software to generate a comprehensive cut-fill map
  • LevelGuide can also be used to mark a rising or falling contour bank by marking a reference point and defining a slope

LevelGuide - EziGrade


AUTHORISED DEALER

Landform Survey & Design
Steve Hanlon – 0429 938 036
Email : steve@landformsurvey.com.au
Website : www.landformsurvey.com.au


AUTHORISED DEALER

Viero Laser Levelling
Peter Viero – 0403 067 005
Email : peter@vierolaserlevelling.net.au
 

FREQUENTLY ASKED QUESTIONS

The advantages of using GPS . . .

over laser are that you are not limited to operating close to the base station you can move up 4km from the Base. A field design surface can be loaded into the PC for the controller to allow the blade to follow in the field. This can be a flat plane, a combination of planes or even a ‘curved’ surface for more undulating fields. The only boundaries are the field boundaries.

The vertical accuracy . . .

of the GPS is typically 10 to 15 mm. Combined with other inaccuracies associated with land levelling, such as hydraulic lag, tyre flexing, field trash and clod size, it’s on a par with or better than laser systems used in agricultural land levelling.

Distance from the Base

The vertical accuracy is affected by the distance the rover is operating from the base station. However up to about 4 km from the base station there is very little change in accuracy.

Field Designs

Levelguide is based around a cut and fill design package called Ezigrade and the Civil Design package, CDS. This package can be used to create simple designs with planes and ‘curved’ surfaces through to more complex ones with many multiple planes, banks etc.

Design Services . . .

ike Landform Survey and Design in conjunction with other Irrigation field designers can either create designs or help find a local designer who can do this for you.

Simple grading for building ditch pads and drains

There is no need to have a field design, levelguide can be setup simply like a laser by setting grades in the PC. The best part about this is this can be done from the tractor seat and these grades are stored in the PC so if you wish to return to this ‘design’ latter on it is easy.

Other Design Packages

If you have field designs from other design packages these can be converted to go into Levelguide. These designs can be either digital or on paper but the base survey information needs to be in a digital format. Landform Survey and Design and its associates have the capability of converting many different file formats so they can be loaded into Levelguide, some of these include 12D designs and Trimble designs.

AutoSteering and Levelling

These functions can both happen together if you wish. This requires 2 Rover GPS’s to be mounted one for autosteering the tractor with the antenna on the bonnet of the tractor and one for controlling the blade with the GPS antenna on the bucket.

What sort of implements can Levelguide be attached to?

Levelguide can be used on any implement with a blade. Hydraulics on the blade need to be external (not three point linkage). Even landplanes and grader blades (with hydraulic wheel lifts) can be operated with levelguide.

What sort of hydraulics are required?

On larger later model tractors, such as Case, New Holland and John Deere the hydraulic remotes can be used to control the blade in automatic mode. With other brands of tractor a proportional valve will be required to operate the blade.

Can Levelguide be used manually?

Levelguide can be used either manually or in automatic operation. In the manual mode the operator follows the display on the screen to raise and lower the blade, in automatic mode the Agguide PC operates the hydraulics on the implement.

** Notice of Firmware Updates **

The following relates to recent Firmware updates for LevelGuide customers.

Firmware 6.5 versus 6.6

Notification of Reported accuracy Change
Since release of the new Firmware Version 6.6 for the Novatel receivers, we have had some customers note that vertical accuracy appears to have deteriorated when compared to the previous Firmware version 6.5.

We have spent considerable time testing this both in Australia and requesting that Novatel also run simultaneous tests.

Our testing showed that in most circumstances, Firmware version 6.5 did show better reported vertical accuracy.

Following this, we sent data files requested by Novatel (Technical Support) and these were analysed in detail.

We received the following report below from Novatel and graphs showing results.

It appears that Novatel remain confident that there are improvements in the algorithms reporting state variance in Version 6.6 Firmware but in the same report do not comment on the apparent accuracy reporting difference.

It must be remembered that in any GPS system, accuracies reported are a result of complex algorithms that continually calculate the reported ‘accuracy’

Following further testing we believe that the stability of the new Firmware version 6.6 is good and that customers that are concerned about ‘calculated accuracy’ should check on ground accuracy when comparing systems as this is the final proof of application.

Graph Comments

As shown in the graph below, firmware version 6.6 does provide larger std dev. However, no problem was found by looking at the data. As it was mentioned before, the RTK engine has been improved in firmware version 6.6 . Generally in firmware version 6.6 , RTK engine provides better state estimates (including state co-variance) than the old technology used in the previous firmware version.

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